CN220907280U - Wastewater treatment system - Google Patents
Wastewater treatment system Download PDFInfo
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- CN220907280U CN220907280U CN202322794621.9U CN202322794621U CN220907280U CN 220907280 U CN220907280 U CN 220907280U CN 202322794621 U CN202322794621 U CN 202322794621U CN 220907280 U CN220907280 U CN 220907280U
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- water
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- outlet
- treatment system
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 144
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 22
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 20
- 230000023556 desulfurization Effects 0.000 claims abstract description 20
- 238000007872 degassing Methods 0.000 claims abstract description 19
- 239000012716 precipitator Substances 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 239000002351 wastewater Substances 0.000 claims description 28
- 239000010802 sludge Substances 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims 2
- 238000010992 reflux Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Physical Water Treatments (AREA)
Abstract
The utility model discloses a wastewater treatment system, which comprises an anaerobic reaction unit, a biogas desulfurization unit, a biogas pressure stabilizing unit, a degassing tower unit and a precipitator unit; the anaerobic reaction unit comprises an anaerobic reactor and a first water distributor, and the first water distributor is arranged at the bottom of the anaerobic reactor; the anaerobic reactor is provided with a water inlet, a water outlet and a methane outlet; the biogas desulfurization unit is connected with the biogas outlet to carry out desulfurization treatment on the biogas; the biogas pressure stabilizing unit is connected with the outlet of the biogas desulfurization unit to stabilize the biogas; the degasser unit comprises a degasser and a second water distributor, a water storage area is arranged at the bottom of the degasser, and the second water distributor is arranged above the water storage area; the degassing tower is sequentially provided with an air outlet end, a water inlet end and an air inlet end from top to bottom; the precipitator unit is connected with the water outlet end of the water storage area so as to perform precipitation treatment on water discharged from the water storage area. The utility model has the advantages of good operation stability and low energy consumption.
Description
Technical Field
The utility model relates to the field of wastewater treatment, in particular to a wastewater treatment system suitable for high-organic matters, high-solid matters, high-sulfate radicals and high-ammonia nitrogen wastewater.
Background
Aiming at the problems of complex treatment process and high difficulty of wastewater containing high organic matters, high solids, high sulfate radicals and high ammonia nitrogen in the prior art, the conventional anaerobic process is difficult to treat under the requirements of saving cost, occupied area, running stability and the like; the COD of the waste water is often as high as tens of thousands of milligrams per liter, sulfate radicals and ammonia nitrogen are as high as more than thousands of milligrams per liter, and the solid content is very high. At present, conventional gas stirred reactors are commonly used for the treatment of such waste water.
However, the conventional gas stirred reactor has the following main drawbacks:
1) The gas stripping pipe is supported and arranged inside the reactor along the inner wall of the tank body, so that the maintenance difficulty is high, and the reactor needs to be cleaned integrally after the gas stripping pipe is blocked;
2) By adopting an internal stripping mode, the defects of high energy consumption and incomplete stripping exist, the system is easily crashed due to the accumulation of hydrogen sulfide, and the high hydrogen sulfide gas belongs to extremely toxic materials, is required to be free from corrosion and leakage, and has high requirements on equipment materials and sealing.
Disclosure of utility model
Aiming at the defects of the prior art, the main purpose of the utility model is to provide a wastewater treatment system with good operation stability and low energy consumption.
In order to achieve the main purpose, the utility model provides a wastewater treatment system, which comprises an anaerobic reaction unit, a biogas desulfurization unit, a biogas pressure stabilizing unit, a degasser unit and a precipitator unit;
The anaerobic reaction unit comprises an anaerobic reactor and a first water distributor, and the first water distributor is arranged at the bottom of the anaerobic reactor; the anaerobic reactor is provided with a water inlet, a water outlet and a methane outlet, wherein the water inlet is used for being connected with the first water distributor to supply wastewater; a wastewater circulating pipe is arranged between the water outlet and the water inlet so as to circulate wastewater at the upper layer in the anaerobic reactor to the bottom of the anaerobic reactor;
the biogas desulfurization unit is connected with the biogas outlet to carry out desulfurization treatment on the biogas;
the biogas pressure stabilizing unit is connected with the outlet of the biogas desulfurization unit to stabilize the biogas;
The degasser unit comprises a degasser and a second water distributor, a water storage area is arranged at the bottom of the degasser, and the second water distributor is arranged above the water storage area; wherein, the degasser is provided with an air outlet end, a water inlet end and an air inlet end from top to bottom in sequence; the water inlet end is used for being connected with the second water distributor to supply spray water, the air inlet end is connected with the outlet of the biogas pressure stabilizing unit, and the air outlet end is connected with the inlet of the biogas pressure stabilizing unit;
the precipitator unit is connected with the water outlet end of the water storage area so as to perform precipitation treatment on water discharged from the water storage area.
According to one embodiment of the utility model, the water inlet end of the degassing tower is communicated with the water outlet of the anaerobic reactor.
Further, the precipitator unit has a sludge outlet connected with a water inlet of the anaerobic reactor for sludge recirculation.
Further, the water storage area is provided with a first water outlet end and a second water outlet end, the first water outlet end is connected with the inlet of the precipitator unit, and the second water outlet end is connected with the water inlet of the anaerobic reactor; wherein, first water outlet end is located the top of second water outlet end.
Further, the first water outlet end is arranged at the top of the water storage area, and the second water outlet end is arranged at the bottom of the water storage area.
According to one embodiment of the utility model, the first water distributor is a perforated pipe type multipoint water distributor, a jet water distributor or a pulse water distributor.
According to one specific embodiment of the utility model, a biogas water seal device is arranged at the biogas outlet.
According to one embodiment of the utility model, an aeration head is arranged in the degassing tower, and biogas conveyed through the air inlet end of the degassing tower enters the interior of the degassing tower through the aeration head.
According to one embodiment of the utility model, the settler unit comprises a settler housing and an inclined plate settler module arranged in the settler housing at the middle or at the top of the settler housing.
According to one embodiment of the utility model, the biogas digester further comprises a burner unit, wherein the burner unit is connected with the outlet of the biogas pressure stabilizing unit.
The utility model has the following beneficial effects:
The wastewater treatment system adopts modularized arrangement, has good operation stability for wastewater treatment with high COD, high solids, high sulfate radical and high ammonia nitrogen, and has the advantages of low operation cost and low energy consumption; is particularly suitable for treating the waste water of fermenting biological pharmacy, the waste water of preparing fuel ethanol by carbon monoxide, and the like.
In addition, the wastewater treatment system adopts a fully-closed design structure, and wastewater and sludge are recycled among the modules, so that the wastewater treatment system has the advantages of higher utilization rate, no waste gas generation and small influence on the environment.
The objects, technical solutions and advantages of the present utility model will be more clearly described below, and the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic diagram of a wastewater treatment system of the present utility model.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.
The wastewater treatment system of the embodiment of the utility model is shown in fig. 1, and comprises an anaerobic reaction unit 10, a biogas desulfurization unit 20, a biogas stabilization unit 30, a degasser unit 40 and a precipitator unit 50; the anaerobic reaction unit 10 is mainly used for carrying out anaerobic treatment on wastewater and obtaining biogas, the biogas desulfurization unit 20 is mainly used for carrying out desulfurization treatment on the biogas generated by the anaerobic reaction unit 10, the biogas pressure stabilizing unit 30 is mainly used for stabilizing the biogas, and the degassing tower unit 40 is mainly used for separating other gases (such as carbon dioxide) in the biogas. The biogas desulfurization unit 20 may refer to a biogas desulfurization structure in the prior art, and the biogas stabilization unit 30 may refer to a biogas stabilization cabinet structure in the prior art, which is not developed.
The anaerobic reaction unit 10 comprises an anaerobic reactor 11 and a first water distributor 12, wherein the first water distributor 12 is arranged at the bottom of the anaerobic reactor 11; wherein the anaerobic reactor 11 is provided with a water inlet 111, a water outlet 112 and a biogas outlet 113; specifically, the number of the water inlets 111 and the water outlets 112 may be one or more.
The water inlet 111 is used for being connected with the first water distributor 12 to supply wastewater; the first water distributor 12 can be a perforated pipe type multipoint water distributor, a jet water distributor or a pulse water distributor; specifically, the water inlet 111 is connected to the water tank 60 through a pipe, on which a feed pump 61 is preferably provided, and the amount of wastewater fed from the water tank 60 to the water inlet 111 is regulated by controlling the feed pump 61.
A wastewater circulation pipe 13 is arranged between the water outlet 112 and the water inlet 111, and the wastewater circulation pipe 13 is used for circulating wastewater at the upper layer in the anaerobic reactor 11 to the bottom of the anaerobic reactor 11 so as to more fully stir and mix the interior of the anaerobic reactor 11 while increasing the inflow, and in addition, the rising flow rate of the wastewater can be ensured. Wherein, the waste water circulating pipe 13 is provided with a waste water circulating pump 14, and the waste water amount flowing back from the water outlet 112 to the water inlet 111 is regulated by controlling the waste water circulating pump 14.
The biogas outlet 113 is specifically arranged at the top of the anaerobic reactor 11, and the biogas desulfurization unit 20 is connected with the biogas outlet 113 to carry out desulfurization treatment on biogas; wherein, the biogas outlet 113 is provided with a biogas water seal 114 to prevent biogas leakage.
The biogas pressure stabilizing unit 30 is connected with the outlet of the biogas desulfurization unit 20 to perform pressure stabilizing treatment on the desulfurized biogas, so that the biogas passing through the biogas pressure stabilizing unit 30 has stable pressure and flow rate.
The degasser unit 40 comprises a degasser 41 and a second water distributor 42, a water storage area 43 is arranged at the bottom of the degasser 41, and the second water distributor 42 is arranged above the water storage area 43; specifically, the structure of the degassing tower 41 may refer to a degassing tower in the prior art, for example, the interior of the degassing tower 41 is sequentially divided into a water removal area, a degassing area, a water distribution area and a water storage area 43 from top to bottom, and the second water distributor 42 is disposed corresponding to the water distribution area; wherein, the degassing tower 41 is provided with an air outlet end 411, a water inlet end 412 and an air inlet end 413 from top to bottom in sequence.
The water inlet end 412 is used for being connected with the second water distributor 42 to supply spray water; specifically, the water inlet end 412 in the embodiment is communicated with the water outlet 112 of the anaerobic reactor 11, that is, the upper layer wastewater of the anaerobic reactor 11 is utilized as shower water.
The air inlet end 413 is connected with the outlet of the methane pressure stabilizing unit 30, and the air outlet end 411 is connected with the inlet of the methane pressure stabilizing unit 30; wherein, the pipeline of the air inlet end 413 connected with the outlet of the biogas pressure stabilizing unit 30 is preferably provided with a biogas booster fan 414 so as to quickly convey biogas into the degassing tower 41. Preferably, an aeration head is further provided in the degassing tower 41, and biogas fed through the gas inlet end 413 of the degassing tower 41 enters the degassing tower 41 through the aeration head to ensure uniform gas dispersion.
The precipitator unit 50 is connected to the water outlet end of the water storage area 43 to perform a precipitation treatment on the water discharged from the water storage area 43. In the embodiment, the water storage area 43 has a first water outlet 431 and a second water outlet 432, and the first water outlet 431 is located above the second water outlet 432; wherein the first water outlet 431 is connected to the inlet of the precipitator unit 50, the second water outlet 432 is connected to the water inlet 111 of the anaerobic reactor 11 through the first return pipe 15, and the first return pipe 15 is preferably provided with the first return pump 16, and the mixed material (mainly precipitated sludge) at the bottom of the water storage area 43 is returned to the anaerobic reactor 11 by turning on the first return pump 16.
Further, the settler unit 50 includes a settler housing 51 and an inclined plate settler module 52, the inclined plate settler module 52 being disposed in the settler housing 51 and located in the middle or top of the settler housing 51; the settler unit 50 has a sludge outlet 53, the sludge outlet 53 preferably being arranged at the bottom of the settler housing 51; the sludge outlet 53 is connected to the water inlet 111 of the anaerobic reactor 11 via a second return pipe 17, and the second return pipe 17 is preferably provided with a second return pump 18, and the sludge separated in the precipitator housing 51 is returned to the anaerobic reactor 11 by turning on the second return pump 18.
With continued reference to fig. 1, the wastewater treatment system in the embodiment further includes a burner unit 70 and a biochemical unit 80, where the burner unit 70 is connected to the outlet of the biogas stabilizing unit 30, and is used for performing biogas combustion treatment; of course, the treated biogas can also be supplied to other equipment for use, and is not expanded here; the biochemical unit 80 is connected to the wastewater outlet of the precipitator unit 50 to reprocess wastewater separated by the precipitator unit 50.
The wastewater treatment system of the embodiment adopts a fully-closed design structure, wastewater and sludge are recycled among all modules, and no waste gas is generated in the whole process.
Although the utility model has been described above by way of examples, it should be understood that the above examples are illustrative only of the possible embodiments of the utility model and should not be construed as limiting the scope of the utility model, i.e. that substitutions or variations according to the utility model will be covered by the scope of the claims of the utility model.
Claims (10)
1. The wastewater treatment system is characterized by comprising an anaerobic reaction unit, a biogas desulfurization unit, a biogas pressure stabilizing unit, a degasser unit and a precipitator unit;
The anaerobic reaction unit comprises an anaerobic reactor and a first water distributor, and the first water distributor is arranged at the bottom of the anaerobic reactor; the anaerobic reactor is provided with a water inlet, a water outlet and a methane outlet, wherein the water inlet is used for being connected with the first water distributor to supply wastewater; a wastewater circulating pipe is arranged between the water outlet and the water inlet so as to circulate wastewater at the upper layer in the anaerobic reactor to the bottom of the anaerobic reactor;
The biogas desulfurization unit is connected with the biogas outlet to carry out desulfurization treatment on biogas;
The biogas pressure stabilizing unit is connected with the outlet of the biogas desulfurization unit to stabilize the biogas;
The degasser unit comprises a degasser and a second water distributor, a water storage area is arranged at the bottom of the degasser, and the second water distributor is arranged above the water storage area; wherein, the degasser is provided with an air outlet end, a water inlet end and an air inlet end from top to bottom in sequence; the water inlet end is used for being connected with the second water distributor to supply spray water, the air inlet end is connected with the outlet of the biogas pressure stabilizing unit, and the air outlet end is connected with the inlet of the biogas pressure stabilizing unit;
The precipitator unit is connected with the water outlet end of the water storage area so as to perform precipitation treatment on water discharged from the water storage area.
2. The wastewater treatment system of claim 1, wherein: the water inlet end of the degasser is communicated with the water outlet of the anaerobic reactor.
3. The wastewater treatment system of claim 2, wherein: the precipitator unit is provided with a sludge outlet which is connected with a water inlet of the anaerobic reactor for sludge reflux.
4. The wastewater treatment system of claim 2, wherein: the water storage area is provided with a first water outlet end and a second water outlet end, the first water outlet end is connected with the inlet of the precipitator unit, and the second water outlet end is connected with the water inlet of the anaerobic reactor; the first water outlet end is positioned above the second water outlet end.
5. The wastewater treatment system of claim 4, wherein: the first water outlet end is arranged at the top of the water storage area, and the second water outlet end is arranged at the bottom of the water storage area.
6. The wastewater treatment system of claim 1, wherein: the first water distributor is a perforated pipe type multipoint water distributor, a jet water distributor or a pulse water distributor.
7. The wastewater treatment system of claim 1, wherein: and a biogas water seal device is arranged at the biogas outlet.
8. The wastewater treatment system of claim 1, wherein: an aeration head is arranged in the degassing tower, and biogas conveyed through the air inlet end of the degassing tower enters the degassing tower through the aeration head.
9. The wastewater treatment system of claim 1, wherein: the settler unit comprises a settler shell and an inclined plate sedimentation module, wherein the inclined plate sedimentation module is arranged in the settler shell and is positioned in the middle or the top of the settler shell.
10. The wastewater treatment system of claim 1, wherein: the biogas methane pressure stabilizing device also comprises a burner unit, wherein the burner unit is connected with an outlet of the biogas pressure stabilizing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322794621.9U CN220907280U (en) | 2023-10-18 | 2023-10-18 | Wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322794621.9U CN220907280U (en) | 2023-10-18 | 2023-10-18 | Wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220907280U true CN220907280U (en) | 2024-05-07 |
Family
ID=90910154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322794621.9U Active CN220907280U (en) | 2023-10-18 | 2023-10-18 | Wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220907280U (en) |
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2023
- 2023-10-18 CN CN202322794621.9U patent/CN220907280U/en active Active
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