CN212864467U - Sewage treatment system - Google Patents
Sewage treatment system Download PDFInfo
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- CN212864467U CN212864467U CN202021066772.2U CN202021066772U CN212864467U CN 212864467 U CN212864467 U CN 212864467U CN 202021066772 U CN202021066772 U CN 202021066772U CN 212864467 U CN212864467 U CN 212864467U
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- sludge
- biochemical reaction
- treatment system
- tank
- reaction sedimentation
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- 239000010865 sewage Substances 0.000 title claims abstract description 54
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 48
- 238000004062 sedimentation Methods 0.000 claims abstract description 43
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000010802 sludge Substances 0.000 claims description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000005276 aerator Methods 0.000 claims description 17
- 238000010992 reflux Methods 0.000 claims description 13
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- 238000009928 pasteurization Methods 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims 3
- 238000001556 precipitation Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 239000002352 surface water Substances 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model provides a sewage treatment system, include: the biochemical reaction sedimentation system comprises a biochemical reaction sedimentation tank, a circulation clarifier and an aeration device, wherein the circulation clarifier is arranged at the top of the biochemical reaction sedimentation tank, and the aeration device is arranged below the circulation clarifier; and the denitrification deep-bed filter is connected with the overflow groove of the circulation clarifier through a pipeline and is used for discharging the effluent of the circulation clarifier to the denitrification deep-bed filter. The combination of biochemical reaction precipitation and the denitrification deep-bed filter tank is utilized, a sewage treatment process can be rapidly and stably realized through modular and standardized equipment such as a circulation clarifier, and the final effluent reaches the IV-class surface water environment quality standard after the treatment of a biochemical reaction precipitation system and the denitrification deep-bed filter tank.
Description
Technical Field
The utility model relates to a sewage treatment technical field particularly, especially relates to a sewage treatment system.
Background
Along with the continuous improvement of the attention degree of each city to the ecological environment, more and more sewage that does not insert the municipal pipe network need to be handled fast in order to avoid flowing into the river course and make river blacken and foul, some conventional sewage treatment processes are because of reasons such as area is great, running cost is higher, construction cycle is longer, are not suitable for this kind of land shortage, running cost can not be too high, construction cycle short occasion. Municipal pipe network construction is generally long in period, and is difficult to receive all sewage in a short time. In addition, the sewage treatment plant design scale is less than the sewage volume that actually needs to handle for some sewage treatment plants, leads to partial sewage of accomodating can not get into sewage treatment plant and handles, before the sewage treatment plant extension task is not accomplished, also needs to carry out quick emergency treatment to this part sewage. At present, a sewage treatment system which is rapid, efficient, small in occupied space, low in operation cost, simple in management or stable in effluent is lacked in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of above-mentioned technical defect at least, provide one kind be applied to emergent sewage treatment can high efficiency, take up an area of less, the running cost is low, the management is simple or go out the sewage treatment system that the water is stable.
The utility model provides a sewage treatment system, include:
the biochemical reaction sedimentation system comprises a biochemical reaction sedimentation tank, a circulation clarifier and an aeration device, wherein the circulation clarifier is arranged at the top of the biochemical reaction sedimentation tank, and the aeration device is arranged below the circulation clarifier;
and the denitrification deep-bed filter is connected with the overflow groove of the circulation clarifier through a pipeline and is used for discharging the effluent of the circulation clarifier to the denitrification deep-bed filter.
Optionally, the aeration device includes an aerator and a perforated pipe, an aerobic zone is formed between the horizontal plane of the aerator and the top water surface of the biochemical reaction sedimentation tank, an anoxic zone is formed between the horizontal plane of the aerator and the bottom of the biochemical reaction sedimentation tank, and the perforated pipe is arranged at the bottom of the anoxic zone.
Optionally, the biochemical reaction sedimentation system further comprises a nitrification reflux device, the nitrification reflux device is arranged in the biochemical reaction sedimentation tank, a water inlet end of the nitrification reflux device is arranged at the top of the aerobic zone, and a water outlet end of the nitrification reflux device is arranged at the bottom of the anoxic zone.
Optionally, the sewage treatment system still includes water distribution system, water distribution system includes catch basin and grit chamber, be provided with first grid and sewage elevator pump in the catch basin, be used for flowing through the sewage of first grid passes through the sewage elevator pump is carried to the grit chamber.
Optionally, the water distribution system further comprises a second grid, and the second grid is arranged at the top of the grit chamber and used for enabling effluent of the sewage lift pump to flow through the second grid and then enter the grit chamber.
Optionally, the biochemical reaction precipitation system comprises at least two loop clarifiers.
Optionally, a sludge discharge port is arranged at the bottom of the biochemical reaction sedimentation tank.
Optionally, the sewage treatment system further comprises a sludge treatment system, the sludge treatment system comprises a sludge concentration tank and a sludge dewatering device, the sludge concentration tank is connected with the sludge discharge port through a pipeline, and the sludge dewatering device is arranged above the sludge concentration tank.
Optionally, the sludge treatment system further comprises a sludge conveyor and a sludge storage bin, wherein one end of the sludge conveyor is arranged at the discharge port of the sludge dewatering device, and the other end of the sludge conveyor is arranged above the sludge storage bin.
Optionally, the sewage treatment system further comprises a pasteurization tank, and the pasteurization tank is connected with the water outlet of the denitrification deep-bed filter tank through a pipeline.
Compared with the prior art, the beneficial effects of the utility model include:
the circulation clarifier is arranged at the top of the biochemical reaction sedimentation tank, and the air stripping power generated by the aerator is utilized to realize the full mixing of the sewage and the sludge containing the microorganisms and the formation of circulation, so that the three-in-one combination of anoxic, aerobic and sedimentation processes is realized, and the maximization of the treatment efficiency is realized under the condition of limited floor area. Supernatant in the circulation clarifier overflows to an overflow tank and then is guided to a denitrification deep bed filter tank, the concentration of pollutants such as suspended matters, total nitrogen and the like in water is further removed, the combination of biochemical reaction precipitation and the denitrification deep bed filter tank is utilized, a sewage treatment process can be rapidly and stably realized through modular and standardized equipment such as the circulation clarifier and the like, and after the treatment of a biochemical reaction precipitation system and the denitrification deep bed filter tank, the final effluent reaches the surface water environment quality standard class IV, wherein TN (total nitrogen content) is less than 10 mg/L.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a sewage treatment system provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a circulation clarifier in a sewage treatment system according to an embodiment of the present invention;
description of reference numerals:
1-a water collecting tank; 11-a first grid; 12-a sewage lift pump;
2-a grit chamber; 21-a second grid;
3-a biochemical reaction sedimentation tank; 31-a loop clarifier; 32-an aerator; 33-perforated pipes;
311-outer baffles; 312-a flow-guiding through hole; 313-an inner baffle; 314-an overflow launder; 315-a sedimentation sloping plate; 316-inverted V-shaped plate; 317-a drain pipe; 318-sloping plate packing;
4-denitrification deep bed filter;
5-a pasteur gauging tank;
61-sludge concentration tank; 62-a sludge dewatering device; 63-a sludge conveyer; 64-sludge storage bin.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sewage treatment system according to an embodiment of the present invention.
As shown in fig. 1, the sewage treatment system includes a biochemical reaction sedimentation system and a denitrification deep-bed filter 4, the biochemical reaction sedimentation system includes a biochemical reaction sedimentation tank 3, a loop clarifier 31, an aeration device and a nitrification reflux device (not shown in the figure), the loop clarifier 31 and the aeration device are disposed inside the biochemical reaction sedimentation tank 3 and connected with the biochemical reaction sedimentation tank 3, and the connection manner may be fixed relative to the biochemical reaction sedimentation tank 3, such as welding, detachable connection or being erected by a bracket, and the like, but is not limited thereto. The circulation clarifier 31 is arranged at the top of the biochemical reaction sedimentation tank 3. The aeration device comprises an aerator 32 and a perforated pipe 33, the aerator 32 is arranged below the circulation clarifier 31, the aeration effect of the aerator 32 ensures that the oxygen content of the liquid between the horizontal plane of the aerator 32 and the water surface at the top of the biochemical reaction sedimentation tank 3 is higher to form an aerobic zone, the oxygen content of the liquid between the horizontal plane of the aerator 32 and the bottom of the biochemical reaction sedimentation tank 3 is lower to form an anoxic zone, the bottom of the anoxic zone is provided with the perforated pipe 33 for intermittent aeration, the biochemical reaction sedimentation tank 3 is also internally provided with a nitrification reflux device, the water inlet end of the nitrification reflux device is arranged at the top of the aerobic zone, the water outlet end of the nitrification reflux device is arranged at the bottom of the anoxic zone and is used for refluxing the nitrification liquid from the top of the aerobic zone to the bottom of the anoxic zone, and a sludge discharge port (not shown in the figure) is arranged at the bottom of.
Fig. 2 is a schematic structural diagram of the circulation clarifier 31 in the sewage treatment system provided by the embodiment of the present invention, and is shown in fig. 2, the circulation clarifier 31 includes an outer guide plate 311, which is arranged in the outer guide plate 311, an inner guide plate 313 connected with the outer guide plate 311, a guide through hole 312 is provided above the outer guide plate 311, an inclined plate 315 is obliquely arranged below the outer guide plate 311, the inclined plate 315 is connected with the lower end of the outer guide plate 311, so that a tapered shape with a large top and a small bottom is formed below the circulation clarifier 31, an inverted V-shaped plate 316 is arranged at the lower end of the inclined plate 315, an annular inclined plate filler 318 (or an inclined tube filler) is arranged between the inner guide plates 313, an overflow groove 314 is arranged above the inclined plate 315, a water outlet pipe 317 is arranged at the bottom of the overflow groove 314.
The denitrification deep bed filter is a treatment unit integrating biological denitrification and filtering functions, the effluent of the circulation clarifier 31 in the biochemical reaction sedimentation tank 3 enters the denitrification deep bed filter for biological denitrification and filtration and then is discharged as clear water, and the water outlet end of the denitrification deep bed filter is connected with a pasteurization tank.
When sewage is treated, sewage is led into a biochemical reaction sedimentation tank 3, a plurality of sets of circulation clarifiers 31 are arranged in the biochemical reaction sedimentation tank 3, then an aerator 32 and a perforated pipe 33 carry out aeration, so that the sewage is fully mixed with sludge containing microorganisms, upward power of a mud-water mixture is provided, the mud-water mixture enters the biochemical reaction sedimentation tank 3 again through an inverted V-shaped plate 316 along an outer guide plate 311 of the circulation clarifier 31 and a guide through hole 312 and downward along an inner guide plate 313 in the upward process, supernatant with lower density passes through an inclined plate filler 318 and then enters an overflow groove 314, and enters a denitrification deep bed filter tank 4 through a drain pipe 317 after being collected. The denitrification process treatment is carried out through the denitrification deep bed filter 4, pollutants are further removed, and the effluent of the denitrification deep bed filter 4 enters the pasteurization tank 5 for metering and then is discharged after reaching the standard.
The embodiment of the utility model provides a through set up the circulation clarifier at biochemical reaction sedimentation tank top, utilize the air stripping power that the aerator produced, realize sewage and the mud intensive mixing that contains the microorganism and form the circulation, realized that oxygen deficiency, good oxygen, the trinity of precipitation technology combine to under the limited area condition, realized the maximize of treatment effeciency. Supernatant in the circulation clarifier overflows to an overflow tank and then is guided to a denitrification deep bed filter tank, the concentration of pollutants such as suspended matters, total nitrogen and the like in water is further removed, the combination of biochemical reaction precipitation and the denitrification deep bed filter tank is utilized, a sewage treatment process can be rapidly and stably realized through modular and standardized equipment such as the circulation clarifier and the like, and after the treatment of a biochemical reaction precipitation system and the denitrification deep bed filter tank, the final effluent reaches the surface water environment quality standard class IV, wherein TN (total nitrogen content) is less than 10 mg/L.
In some embodiments, in order to achieve more stable control of water inflow of the biochemical reaction sedimentation tank 3, remove particle impurities with larger particle diameters in sewage, and protect facilities such as pipelines and valves from abrasion and blockage, the sewage treatment system further comprises a water distribution system, wherein the water distribution system comprises a water collection tank 1 and a grit chamber 2, the grit chamber 2 can adopt any one of a advection grit chamber, an aeration grit chamber, a rotational flow grit chamber and the like, a first grid 11 and a sewage lifting pump 12 are arranged in the water collection tank 1 and are respectively connected with the water collection tank 1, a second grid 21 is arranged above the grit chamber 2, and a water outlet end of the sewage lifting pump 12 is arranged above the second grid 21. When carrying out sewage treatment, sewage filters through first grid 11, then gets into catch basin 1, and when reaching the design water level, sewage elevator pump 12 starts, promotes 2 tops of grit chamber with sewage, gets into grit chamber 2 after second grid 21 filters and deposits, further reduces the particle impurity in the sewage, and the supernatant of grit chamber 2 is carried to biochemical reaction sedimentation tank 3.
In some embodiments, the first grid 11 is a coarse grid and the second grid 21 is a fine grid.
In some embodiments, the wastewater treatment system further comprises a sludge treatment system for treating sludge resulting from the wastewater treatment. The sludge treatment system comprises a sludge concentration tank 61, a sludge lifting pump (not shown in the figure), a sludge dewatering device 62, a sludge dewatering device 63 and a sludge storage bin 64, a sludge discharge port of the biochemical reaction sedimentation tank 3 is connected to the sludge concentration tank 61 through a pipeline, the sludge lifting pump is installed in the sludge concentration tank 61, a sludge dewatering room is arranged above the sludge concentration tank 61, the sludge dewatering room is internally provided with the sludge dewatering device 62, an outlet end of the sludge lifting pump is communicated to a feed port of the sludge dewatering device 62, the sludge dewatering device 62 can adopt a belt sludge dewatering machine, a chamber sludge filter press, a screw sludge dewatering machine, a horizontal centrifugal sludge dewatering machine and the like, but is not limited to the above. A sludge conveyer 63 is arranged below the sludge outlet of the sludge dewatering device 62, and one end of the sludge conveyer 63 is arranged above a sludge bin 64. When sludge is treated, the residual sludge in the biochemical reaction sedimentation tank 3 is discharged into a sludge concentration tank 61 through a sludge discharge port, is lifted to a sludge dewatering device 62 for dewatering periodically through a sludge lifting pump, and the dewatered sludge is sent to a sludge storage bin 64 for storage through a sludge conveyor 63 and is transported out periodically for disposal.
It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A wastewater treatment system, comprising:
the biochemical reaction sedimentation system comprises a biochemical reaction sedimentation tank (3), a circulation clarifier (31) and an aeration device, wherein the circulation clarifier (31) is arranged at the top of the biochemical reaction sedimentation tank (3), and the aeration device is arranged below the circulation clarifier (31);
the denitrification deep-bed filter (4) is connected with an overflow trough (314) of the circulation clarifier (31) through a pipeline, and is used for discharging the effluent of the circulation clarifier (31) to the denitrification deep-bed filter (4).
2. The wastewater treatment system according to claim 1, wherein the aeration device comprises an aerator (32) and a perforated pipe (33), the aerator (32) is located at a level to form an aerobic zone between the level of the aerator and the top water surface of the biochemical reaction sedimentation tank (3), the aerator (32) is located at a level to form an anoxic zone between the level of the aerator and the bottom of the biochemical reaction sedimentation tank (3), and the perforated pipe (33) is arranged at the bottom of the anoxic zone.
3. The wastewater treatment system according to claim 2, wherein the biochemical reaction sedimentation system further comprises a nitrification reflux device, the nitrification reflux device is arranged in the biochemical reaction sedimentation tank (3), the water inlet end of the nitrification reflux device is arranged at the top of the aerobic zone, and the water outlet end of the nitrification reflux device is arranged at the bottom of the anoxic zone.
4. The wastewater treatment system according to claim 1, further comprising a water distribution system, wherein the water distribution system comprises a water collecting tank (1) and a grit chamber (2), a first grid (11) and a wastewater lift pump (12) are arranged in the water collecting tank (1) for conveying wastewater flowing through the first grid (11) to the grit chamber (2) through the wastewater lift pump (12).
5. The sewage treatment system according to claim 4, wherein said water distribution system further comprises a second grid (21), said second grid (21) being arranged on top of said grit chamber (2) for allowing the effluent of said sewage lift pump (12) to flow through said second grid (21) and into said grit chamber (2).
6. The wastewater treatment system according to claim 1, wherein the biochemical reaction sedimentation system comprises at least two loop clarifiers (31).
7. The sewage treatment system according to claim 1, wherein a sludge discharge port is provided at the bottom of the biochemical reaction sedimentation tank (3).
8. The sewage treatment system according to claim 7, further comprising a sludge treatment system, wherein the sludge treatment system comprises a sludge concentration tank (61) and a sludge dewatering device (62), the sludge concentration tank (61) is connected with the sludge discharge port through a pipeline, and the sludge dewatering device (62) is arranged above the sludge concentration tank (61).
9. The sewage treatment system according to claim 8, further comprising a sludge conveyor (63) and a sludge silo (64), wherein one end of the sludge conveyor (63) is disposed at the discharge port of the sludge dewatering device (62), and the other end is disposed above the sludge silo (64).
10. The wastewater treatment system according to claim 1, further comprising a pasteurization tank (5), wherein the pasteurization tank (5) is connected with the water outlet of the denitrification deep-bed filter (4) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021066772.2U CN212864467U (en) | 2020-06-10 | 2020-06-10 | Sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021066772.2U CN212864467U (en) | 2020-06-10 | 2020-06-10 | Sewage treatment system |
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| Publication Number | Publication Date |
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| CN212864467U true CN212864467U (en) | 2021-04-02 |
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| CN202021066772.2U Active CN212864467U (en) | 2020-06-10 | 2020-06-10 | Sewage treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620526A (en) * | 2021-08-16 | 2021-11-09 | 清研环境科技股份有限公司 | Sedimentation tank, sewage treatment system and sewage treatment method |
| CN116332429A (en) * | 2023-04-27 | 2023-06-27 | 广东清研环境科技有限公司 | Wastewater treatment process and system for nitrogen-containing organic wastewater |
-
2020
- 2020-06-10 CN CN202021066772.2U patent/CN212864467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620526A (en) * | 2021-08-16 | 2021-11-09 | 清研环境科技股份有限公司 | Sedimentation tank, sewage treatment system and sewage treatment method |
| CN116332429A (en) * | 2023-04-27 | 2023-06-27 | 广东清研环境科技有限公司 | Wastewater treatment process and system for nitrogen-containing organic wastewater |
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