CN220951410U - Integrated sewage treatment system based on MBBR technology - Google Patents
Integrated sewage treatment system based on MBBR technology Download PDFInfo
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- CN220951410U CN220951410U CN202322006445.8U CN202322006445U CN220951410U CN 220951410 U CN220951410 U CN 220951410U CN 202322006445 U CN202322006445 U CN 202322006445U CN 220951410 U CN220951410 U CN 220951410U
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- anaerobic tank
- aerobic
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- 239000010865 sewage Substances 0.000 title claims abstract description 23
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 title claims 10
- 238000005516 engineering process Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000010802 sludge Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000006004 Quartz sand Substances 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 230000001546 nitrifying effect Effects 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000009189 diving Effects 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses an integrated sewage treatment system based on an MBBR (moving bed biofilm reactor) process, which comprises a primary anaerobic tank, a primary aerobic tank, a secondary anaerobic tank, a secondary aerobic tank, a sedimentation tank, a sand filter tank and a clean water tank which are sequentially communicated, wherein a water inlet pipe orifice is arranged on one side of the primary anaerobic tank, and a water outlet pipe orifice is arranged on one side of the clean water tank. On the basis of the existing A/O technology, an anoxic section and an aerobic section are additionally arranged, mixed liquid flows back to the primary anaerobic tank from the primary aerobic tank, and organic matrixes and return sludge in raw water enter the primary anaerobic tank to perform denitrification; the primary anaerobic tank has high denitrification rate because the water inlet of the primary anaerobic tank contains more internal carbon sources and can be utilized, and the secondary anaerobic tank is additionally arranged behind the primary aerobic tank, so that the nitrate nitrogen which is not denitrified can be further removed.
Description
Technical Field
The utility model relates to the technical field of domestic sewage treatment, in particular to an integrated sewage treatment system based on an MBBR (moving bed biofilm reactor) process.
Background
The MBBR technology is a sewage treatment technology integrating the advantages of an activated sludge method and a biological contact oxidation method. The suspended filler with specific gravity close to that of water is added into an aeration zone to serve as a microbial activity carrier, the filler is in a fluidized state by virtue of aeration in the aeration zone and lifting of water flow, biological films with different thicknesses grow inside and outside the filler, anaerobic bacteria or facultative bacteria are mainly used inside the filler, aerobic bacteria are used outside the filler, each carrier is equivalent to a micro-reactor, microbial flora and quantity are increased, and on the basis of degrading organic carbon, the nitrification reaction and the denitrification reaction are carried out simultaneously, so that the overall treatment efficiency of sewage is improved.
The conventional MBBR technology simply utilizes microorganisms to degrade organic matters in sewage, has poor denitrification effect when raw water is insufficient in carbon source, has limitation and instability in biological dephosphorization, and needs to further treat SS (suspended solids) removal through a sedimentation tank.
Disclosure of utility model
In order to overcome the defects of related products in the prior art, the utility model provides an integrated sewage treatment system based on an MBBR process.
The utility model provides an integrated sewage treatment system based on an MBBR process, which comprises: the sewage treatment device comprises a primary anaerobic tank, a primary aerobic tank, a secondary anaerobic tank, a secondary aerobic tank, a sedimentation tank, a sand filter tank and a clean water tank which are sequentially communicated, wherein a water inlet pipe orifice is arranged on one side of the primary anaerobic tank, and a water outlet pipe orifice is arranged on one side of the clean water tank.
In some embodiments of the utility model, a nitrifying liquid return pipe is arranged between the primary aerobic tank and the primary anaerobic tank.
In some embodiments of the utility model, a sludge return pipe is arranged between the sedimentation tank and the primary anaerobic tank.
In certain embodiments of the utility model, the sedimentation tank is provided with a surplus sludge discharge pipe.
In certain embodiments of the utility model, the sand filter is provided with a backwash sludge discharge pipe.
In some embodiments of the utility model, the primary aerobic tank and the secondary aerobic tank are filled with suspended filler, and an aeration system and a suspended filler loss prevention device are arranged.
In certain embodiments of the utility model, a micro-dynamic air mixing system is arranged in the primary anaerobic tank and the secondary anaerobic tank.
In some embodiments of the utility model, a quartz sand filler and a water and gas distribution system are arranged in the sand filter tank.
In some embodiments of the utility model, a submersible lift pump is arranged in the clean water tank.
Compared with the prior art, the utility model has the following advantages:
The integrated sewage treatment system based on the MBBR technology is characterized in that an anoxic section and an aerobic section are additionally arranged on the basis of the existing A/O technology, the reactions of the sections are independently operated, mixed liquid flows back to a primary anaerobic tank from the primary aerobic tank, and organic matrixes and return sludge in raw water enter the primary anaerobic tank to perform denitrification; the water inlet of the first-stage anaerobic tank contains more internal carbon sources and can be utilized, so that the high denitrification rate is realized, meanwhile, the second-stage anaerobic tank is additionally arranged behind the first-stage aerobic tank, so that the nitrate nitrogen which is not subjected to denitrification can be further removed, and if necessary, the carbon sources can be properly supplemented for the anaerobic secondary, so that the denitrification rate is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an integrated sewage treatment system based on an MBBR process according to the present utility model.
Reference numerals illustrate:
1. A first-stage anaerobic tank; 101. a water inlet pipe orifice; 2. a primary aerobic tank; 201. a nitrifying liquid return pipe; 3. a secondary anaerobic tank; 4. a secondary aerobic tank; 5. a sedimentation tank; 501. a sludge return pipe; 502. a surplus sludge discharge pipe; 6. a sand filter; 601. a backwash sludge discharge pipe; 7. a clean water tank; 701. a water outlet pipe orifice.
Detailed Description
In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present utility model with reference to the accompanying drawings. It is apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, and that the preferred embodiments of the utility model are shown in the drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein, but rather is provided to provide a more thorough understanding of the present disclosure.
Referring to fig. 1, the integrated sewage treatment system based on MBBR process includes a primary anaerobic tank 1, a primary aerobic tank 2, a secondary anaerobic tank 3, a secondary aerobic tank 4, a sedimentation tank 5, a sand filter tank 6 and a clean water tank 7 which are sequentially communicated, wherein a water inlet pipe orifice 101 is arranged on one side of the primary anaerobic tank 1, a water outlet pipe orifice 701 is arranged on one side of the clean water tank 7, sewage flows from a front end treatment area to a rear end treatment area by gravity in sequence, corresponding return pipes are arranged in each functional area according to process requirements, and the sewage can flow back to the front end by a pumping or stripping mode, wherein surplus sludge generated by the sedimentation tank 5 and backwash sludge generated by the filter tank are discharged to an external sludge treatment system.
Specifically, in the embodiment of the utility model, a nitrifying liquid reflux pipe 201 is arranged between the primary aerobic tank 2 and the primary anaerobic tank 1, mixed liquid can reflux from the primary aerobic tank 2 to the primary anaerobic tank 1, and the water inlet of the primary anaerobic tank 1 contains more internal carbon sources and can be utilized, so that the denitrification rate is higher.
A sludge return pipe 501 is arranged between the sedimentation tank 5 and the primary anaerobic tank 1, sludge can flow back from the sedimentation tank 5 to the primary anaerobic tank 1, nitrate in the returned sludge is removed, a better anaerobic condition is created for the anaerobic tank, phosphorus accumulating bacteria can fully release phosphorus in an anaerobic mode, excessive phosphorus absorption is facilitated under aerobic conditions, the denitrification and dephosphorization effects of the system are enhanced, and the water quality of effluent is improved.
The sedimentation tank 5 is provided with an excess sludge discharge pipe 502 for periodically discharging excess sludge generated by biochemical treatment to an external sludge treatment system. And a sludge collecting hopper, a water collecting tank, a skimming tank and other devices (not shown) are also arranged in the sedimentation tank 5 and are used for collecting sludge and carrying out subsequent cleaning and pollution discharge operation by matching with the sludge discharge pipe.
The sand filter tank 6 is provided with a back flushing sludge discharge pipe 601 for discharging sludge generated during back flushing of the filter tank to an external sludge treatment system.
The primary aerobic tank 2 and the secondary aerobic tank 4 are filled with suspended filler, and an aeration system and a suspended filler loss prevention device are arranged.
And micro-power air mixing systems are arranged in the primary anaerobic tank 1 and the secondary anaerobic tank 3, so that the mixing efficiency and the effect are improved.
The sand filter tank 6 is internally provided with quartz sand filler and a water and gas distribution system, and the quartz sand filler is matched with the water and gas distribution system to improve the interception effect of impurities.
The clear water pond 7 is internally provided with a diving lift pump, and can output filtered clear water for reuse by being used for butting other external process sections through corresponding connecting pipelines.
The working principle of the integrated sewage treatment system based on the MBBR technology provided by the embodiment of the utility model is as follows: firstly, domestic sewage is collected into a grid canal through a pipeline, larger suspended matters are removed, then average value average treatment is carried out, then the domestic sewage is lifted into the integrated sewage treatment system based on the MBBR technology by a lifting pump, after biochemical treatment of a two-stage AO technology (comprising a first-stage anaerobic tank 1, a first-stage aerobic tank 2, a second-stage anaerobic tank 3 and a second-stage aerobic tank 4), solid-liquid separation is realized in a sedimentation area, PAC is added at the water inlet end of a sedimentation tank 5, and further phosphorus removal is realized through a physical-chemical method; the supernatant fluid of the sedimentation tank 5 enters a quartz sand filler filter tank, ss is further removed after filtering, filtered water flows to a clean water tank 7, the water in the clean water tank 7 flows to a recycling water tank after being lifted into an artificial wetland for further purification, and is discharged after ultraviolet disinfection or is pumped by a greening vehicle to be recycled; wherein the mixed liquor is subjected to gas stripping and backflow to the primary anaerobic tank 1 from the primary aerobic tank 2, part of sludge in the sedimentation zone is subjected to gas stripping and backflow to the primary anaerobic tank 1 for recycling, and the residual sludge in the sedimentation tank 5 is periodically discharged into an intermediate water tank through gas stripping; the quartz sand filler needs to be backwashed regularly, and backwashed water is discharged into an intermediate water tank; the mud-water mixed liquid in the middle water tank is discharged into a sludge tank by a lifting pump, supernatant liquid in the sludge tank flows back to a regulating tank for purification, and concentrated sludge is cleaned regularly (cleaned once in 2-3 months generally) according to actual needs and can be transported to landfill or composted.
Compared with the prior art, the integrated sewage treatment system based on the MBBR process has the following advantages:
1. By setting the denitrification of the front anoxic and the rear anoxic, the low-concentration nitrate of the primary aerobic tank 2 is discharged into the secondary anaerobic tank 3 to be denitrified, so that effluent relatively free of nitrate is produced, and the total nitrogen removal effect is enhanced. In order to remove micro bubbles attached to sludge flocs and nitrogen released during the stay period of the sludge, which are generated in the secondary anaerobic tank 3, a secondary aerobic tank 4 is arranged behind the secondary anaerobic tank 3, so that organic matters can be further removed, N2 can be blown off, and the sedimentation of the subsequent sludge is facilitated;
2. On the basis of the existing A/O process, an anoxic section and an aerobic section are additionally arranged, the reactions of the sections are independently operated, mixed liquid flows back to the primary anaerobic tank 1 from the primary aerobic tank 2, and organic matrixes and return sludge in raw water enter the primary anaerobic tank 1 to perform denitrification; the primary anaerobic tank 1 has higher denitrification rate because more internal carbon sources are available in the water, and meanwhile, the secondary anaerobic tank 3 is additionally arranged behind the primary aerobic tank 2, so that the nitrate nitrogen which is not denitrified can be further removed, and if necessary, the carbon sources can be properly supplemented for the anaerobic secondary, so that the denitrification rate of the anaerobic secondary is improved.
What is not described in detail in this specification is prior art known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the present utility model may be modified or equivalents substituted for some of the features thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.
Claims (9)
1. An integrated sewage treatment system based on an MBBR process is characterized by comprising: the sewage treatment device comprises a primary anaerobic tank (1), a primary aerobic tank (2), a secondary anaerobic tank (3), a secondary aerobic tank (4), a sedimentation tank (5), a sand filter tank (6) and a clean water tank (7) which are sequentially communicated, wherein a water inlet pipe orifice (101) is arranged on one side of the primary anaerobic tank (1), and a water outlet pipe orifice (701) is arranged on one side of the clean water tank (7).
2. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: a nitrifying liquid return pipe (201) is arranged between the primary aerobic tank (2) and the primary anaerobic tank (1).
3. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: a sludge return pipe (501) is arranged between the sedimentation tank (5) and the primary anaerobic tank (1).
4. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: the sedimentation tank (5) is provided with an excess sludge discharge pipe (502).
5. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: the sand filter (6) is provided with a back flushing sludge discharge pipe (601).
6. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: the primary aerobic tank (2) and the secondary aerobic tank (4) are filled with suspended filler, and an aeration system and a suspended filler loss prevention device are arranged.
7. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: micro-power air mixing systems are arranged in the primary anaerobic tank (1) and the secondary anaerobic tank (3).
8. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: and a quartz sand filler and a water and gas distribution system are arranged in the sand filter (6).
9. The MBBR process-based integrated wastewater treatment system according to claim 1, wherein: a diving lift pump is arranged in the clean water tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322006445.8U CN220951410U (en) | 2023-07-28 | 2023-07-28 | Integrated sewage treatment system based on MBBR technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322006445.8U CN220951410U (en) | 2023-07-28 | 2023-07-28 | Integrated sewage treatment system based on MBBR technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220951410U true CN220951410U (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322006445.8U Active CN220951410U (en) | 2023-07-28 | 2023-07-28 | Integrated sewage treatment system based on MBBR technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN220951410U (en) |
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2023
- 2023-07-28 CN CN202322006445.8U patent/CN220951410U/en active Active
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