CN212387932U - Domestic sewage treatment integrated device - Google Patents
Domestic sewage treatment integrated device Download PDFInfo
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- CN212387932U CN212387932U CN202020890090.7U CN202020890090U CN212387932U CN 212387932 U CN212387932 U CN 212387932U CN 202020890090 U CN202020890090 U CN 202020890090U CN 212387932 U CN212387932 U CN 212387932U
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- tank
- sludge
- anoxic
- membrane
- sewage treatment
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- 239000010865 sewage Substances 0.000 title claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 54
- 239000010802 sludge Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 25
- 238000010992 reflux Methods 0.000 claims description 37
- 238000005273 aeration Methods 0.000 claims description 26
- 238000011001 backwashing Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000005842 biochemical reaction Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000037452 priming Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 206010021143 Hypoxia Diseases 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000005374 membrane filtration Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 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 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a domestic sewage treatment integrated device, which is characterized in that a pre-anoxic tank (B), an anaerobic tank (C), an anoxic tank (D), an aerobic tank (E), a rear anoxic tank (F), a rear aerobic tank (G) and a membrane tank (H) are sequentially partitioned in a device main body, and two adjacent tanks can realize overflow between the two tanks through an overflow port between the two tanks; also comprises an equipment tank (I), a contact disinfection tank (J) and a sludge tank (K). The utility model discloses a maximum bright spot of integrated device is that five sections Bardenpho technology anterior segments of improvement increase oxygen deficiency in advance, adopts segmentation water inflow, two-stage denitrification and MBR membrane filtration technique simultaneously, ensures that water quality of water is better more stable.
Description
Technical Field
The utility model belongs to the technical field of domestic sewage treatment, especially, relate to a domestic sewage treatment integrated device (LHBM) based on new technology combination.
Background
The existing integrated domestic sewage treatment equipment usually adopts an A2O + MBR process, has a limit value for the quality index of treated effluent, and cannot meet the requirement of direct discharge of surface water on the premise that the requirement of entering river water in a key basin meets the quasi-IV standard.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a domestic sewage treatment integrated device and processing method specifically is:
the domestic sewage treatment integrated device is characterized in that a device main body is sequentially divided into a pre-anoxic tank, an anaerobic tank, an anoxic tank, an aerobic tank, a post-anoxic tank, a post-aerobic tank and a membrane tank, and two adjacent tanks can realize overflow between the two tanks through an overflow port between the two tanks; also comprises an equipment tank, a contact disinfection tank and a sludge tank.
Further, the second reflux pump has been placed in the membrane pond, and the second reflux pump is through mud back flow UNICOM oxygen deficiency pond in advance, utilizes the second reflux pump to realize the mud in the membrane pond backward flow to the oxygen deficiency pond in advance, provides the mud load for the oxygen deficiency pond in advance.
Furthermore, the second reflux pump is also connected with a sludge outlet pipe in parallel through a pipeline, and valves for controlling the on-off of the pipeline are respectively arranged on the sludge reflux pipe and the sludge outlet pipe; the second reflux pump is communicated with the sludge tank through a sludge outlet pipe, and can discharge the residual sludge in the membrane tank to the sludge tank at regular intervals.
Further, an MBR (membrane bioreactor) membrane assembly is further placed in the membrane tank, the MBR membrane assembly filters the sludge-containing sewage in the biochemical reaction tank by utilizing a membrane to realize sludge-water separation, and the water outlet end of the MBR membrane assembly is communicated with the injection contact disinfection tank through a pipeline and a self-priming pump to obtain high-quality produced water.
Further, the self-priming pump is placed in the equipment tank.
Further, an air pump set is arranged in the equipment area; the air pump set supplies air to the pre-anoxic tank, the anaerobic tank, the anoxic tank, the aerobic tank, the post-anoxic tank, the post-aerobic tank and the membrane tank through the aeration pipelines respectively, a main passage of the aeration pipeline is fixed on the upper part of the device through a support, and each aeration branch enters the lower part of each tank body.
Furthermore, an aeration branch in the aerobic pool adopts a microporous aeration pipe; the aeration branch positioned in the membrane tank can sweep suspended matters intercepted by an MBR membrane component arranged in the tank.
Further, place first backflow pump in the good oxygen pond, first backflow pump is through mixed liquid back flow and oxygen deficiency pond UNICOM, is nitrified the liquid and is refluxed to the oxygen deficiency pond in with the good oxygen pond by first backflow pump.
Furthermore, the water outlet end of the water inlet pipe is communicated with the upper part of the anaerobic tank, the water inlet end is communicated with the regulating tank, and water is introduced into the anaerobic tank from the regulating tank.
Further, a backwashing pump and an ultraviolet disinfection module are arranged in the contact disinfection pool; the backwashing pump is connected with an MBR membrane component arranged in the membrane pool through a pipeline, and the backwashing pump realizes the periodic removal of pollutants of the MBR membrane component by using clean water in the contact disinfection pool.
The utility model discloses a maximum bright spot of integrated device is that five sections Bardenpho technology anterior segments of improvement increase oxygen deficiency in advance, adopts segmentation water inflow, two-stage denitrification and MBR membrane filtration technique simultaneously, ensures that water quality of water is better more stable.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of the apparatus, and it should be noted that the equipment tank I and the contact sterilization tank J are actually located at the same layer, not at the upper and lower layers, and are simplified in drawing;
FIG. 2 is a schematic view of the arrangement of the cells in the apparatus at a top view angle.
In the figure, a. a device main body; B. a pre-anoxic tank; C. an anaerobic tank; D. an anoxic tank; E. an aerobic tank; F. a post anoxic tank; G. a rear aerobic tank; H. a membrane tank; I. an equipment pool; J. a contact disinfection tank; K. a sludge tank; 1. a water inlet pipe; 2. an aeration pipeline; 3. a return sludge pipe; 4. a mixed liquid return pipe; 5. a microporous aerator; 6. a first reflux pump; 7, MBR membrane module; 8. a second reflux pump; 9. a self-priming pump; 10. an air pump unit; 11. a backwash pump; 12. an ultraviolet disinfection module; 13. a mud outlet pipe; 14. a sludge discharge port; 15. a supernatant outlet; 16. and (5) discharging a water pipe.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in the figure, the domestic sewage treatment integrated device of the utility model is characterized in that the device main body A is sequentially divided into a pre-anoxic tank B, an anaerobic tank C, an anoxic tank D, an aerobic tank E, a post-anoxic tank F, a post-aerobic tank G and a membrane tank H, and two adjacent tanks can realize the overflow between the two tanks through overflow ports between the two tanks; the overflow port can be realized by directly utilizing a gap above the tank wall between the two tanks, or can be realized by arranging a through hole on the tank wall between the two tanks; the height of the overflow port between the two previous pools is higher than or equal to or lower than that of the overflow port between the two next pools, and the height can be set before leaving a factory according to a corresponding process and can also be adjusted later, so that the detailed description is omitted;
the device also comprises an equipment tank I, a contact disinfection tank J and a sludge tank K;
the water outlet end of the water inlet pipe 1 is communicated with the upper part of the anaerobic tank C, the water inlet end is communicated with the regulating tank (the regulating tank does not belong to the device, so that the device is not shown in the figure), and water is introduced into the anaerobic tank from the regulating tank to realize the purpose of dephosphorization;
a self-priming pump 9 and an air pump set 10 are arranged in the equipment pool I;
the air pump set 10 supplies air to a pre-anoxic tank B, an anaerobic tank C, an anoxic tank D, an aerobic tank E, a post-anoxic tank F and a post-aerobic tank G, MBR membrane tank H through an aeration pipeline 2, the aeration pipeline can be made of ABS plastic pipes, a main passage of the aeration pipeline is fixed on the upper part of the equipment through a support, and each aeration branch enters the lower part of each tank body to realize the purpose of water body stirring or aerobic air supply;
preferably, the aeration branch in the aerobic tank E adopts a microporous aeration pipe 5; the diameter of a gas-liquid interface generated by the microporous aeration pipe is small, so that the aim of providing an air source for the aerobic tank E and simultaneously realizing uniform diffusion of air in a water body is fulfilled;
a first reflux pump 6 is arranged at the bottom in the aerobic pool E, the first reflux pump 6 is communicated with the anoxic pool D through a mixed liquid reflux pipe 4, the effect of reflux of the nitrifying liquid in the aerobic pool E is realized by utilizing the first reflux pump 6, nitrate nitrogen is provided for the anoxic pool D, and the aim of denitrification is fulfilled;
an MBR membrane module 7 and a second reflux pump 8 are respectively arranged at the bottom of the membrane tank H, wherein,
the MBR membrane module 7 is fixed in the membrane tank H, and is used for filtering the sludge-containing sewage in the biochemical reaction tank by utilizing a membrane to realize sludge-water separation, the water outlet end of the MBR membrane module 7 is communicated with the contact disinfection tank J through a pipeline and a self-priming pump 9, namely, the effluent of the MBR membrane module 7 is pumped into the contact disinfection tank J through the self-priming pump 9, and is clear and transparent, so that high-quality produced water is obtained;
the aeration branch connected with the aeration pipeline 2 and positioned in the membrane tank H can also sweep (aerate) suspended matters intercepted by the MBR membrane component 7;
the purging (aeration) in the membrane pool H has two purposes, namely, the purging (aeration) is used for gas-water oscillation around the membrane component to keep the surface of the membrane clean, and oxygen required by biodegradation is provided. By the high-efficiency interception function of the MBR membrane assembly, all bacteria and suspended matters are intercepted in the aeration tank, so that nitrifying bacteria can be effectively intercepted, the nitration reaction is smoothly carried out, and ammonia nitrogen is effectively removed; meanwhile, macromolecular organic matters which are difficult to degrade can be intercepted, and the retention time of the macromolecular organic matters in the reactor is prolonged, so that the macromolecular organic matters are degraded to a large extent.
The second reflux pump 8 is connected with the sludge reflux pipe 3 and the sludge outlet pipe 13 in parallel through pipelines, and valves (not shown) for controlling the on-off of the pipelines are respectively arranged on the sludge reflux pipe 3 and the sludge outlet pipe 13;
the second reflux pump 8 is communicated with the pre-anoxic tank B through the sludge reflux pipe 3, and the second reflux pump 8 is utilized to realize the reflux of the sludge in the membrane tank H to the pre-anoxic tank B so as to provide sludge load for the pre-anoxic tank B;
the second reflux pump 8 is communicated with the sludge pool K through the sludge outlet pipe 13, namely the second reflux pump 8 can realize that the sludge in the membrane pool H flows back to the anoxic pool B through the sludge reflux pipe 3, and can also discharge the residual sludge in the membrane pool H to the sludge pool K regularly through the sludge outlet pipe 13, so that the concentration and the sludge age of the activated sludge in the system can be controlled.
A backwashing pump 11 and an ultraviolet disinfection module 12 are arranged in the J tank of the contact disinfection tank;
the backwashing pump 11 is connected with the MBR membrane module 7 through a pipeline, the backwashing pump 11 realizes the periodic removal of pollutants from the MBR membrane module 7 by using clean water in the J tank of the contact disinfection tank, and the thickening of a pollution layer and the rising of transmembrane pressure difference are inhibited, so as to achieve the purpose of stable operation; when the maintenance cleaning is carried out, the aeration is stopped;
the ultraviolet disinfection module 12 is installed in the contact disinfection tank through components and realizes the disinfection and sterilization effect on the effluent.
The sludge discharge port 14 is communicated with the sludge tank K through a pipeline, and the sludge is regularly discharged out of the sludge tank K through connecting a quick connector of a sewage suction truck, so that space is provided for storing excess sludge.
The sludge tank K is also provided with a supernatant outlet 15, and the supernatant outlet 15 realizes the purpose of connecting the supernatant in the sludge tank K into the regulating tank.
The water outlet pipe 16 is communicated with the upper part of the contact disinfection tank J, so that the purpose of discharging the process effluent up to the standard is realized.
The integrated device adopts an improved five-section Bardenpho + MBR process, the improved process is mainly characterized in that a pre-anoxic tank B is additionally arranged in front of an anaerobic tank C of a conventional five-section Bardenpho process (A/A/O/A/O process), mixed liquor flows back to an anoxic tank D from an aerobic tank E, and sludge flows back to the pre-anoxic tank B. So as to eliminate the adverse effect of nitrate on biological phosphorus removal and improve the phosphorus removal efficiency of the system. The modified Bardenpho process has the process of removing N, P, and the process segmentation procedure is different from A/A/O. The post-anoxic tank F is used for providing additional denitrification, nitrate produced by the aerobic tank E is used as an electron acceptor, and endogenous organic carbon is used as an electron donor. The last post-aerobic tank G is used for blowing off residual nitrogen and minimizing the release of phosphorus in the secondary sedimentation tank. The improved five-stage process has SRT of 10-20d and longer than A/A/O, and thus has increased carbon oxidizing capacity and denitrogenating capacity.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The domestic sewage treatment integrated device is characterized in that a device main body is sequentially partitioned into a pre-anoxic tank (B), an anaerobic tank (C), an anoxic tank (D), an aerobic tank (E), a rear anoxic tank (F), a rear aerobic tank (G) and a membrane tank (H), and two adjacent tanks can realize overflow between the two tanks through overflow ports between the two tanks; also comprises an equipment tank (I), a contact disinfection tank (J) and a sludge tank (K).
2. The integrated domestic sewage treatment device according to claim 1, wherein a second reflux pump is placed in the membrane pool, the second reflux pump is communicated with the pre-anoxic pool through a sludge reflux pipe, and the second reflux pump is used for refluxing sludge in the membrane pool to the pre-anoxic pool to provide sludge load for the pre-anoxic pool.
3. The integrated domestic sewage treatment apparatus according to claim 2,
the second reflux pump is also connected with a sludge outlet pipe in parallel through a pipeline, and valves for controlling the on-off of the pipeline are respectively arranged on the sludge reflux pipe and the sludge outlet pipe; the second reflux pump is communicated with the sludge tank through a sludge outlet pipe, and can discharge the residual sludge in the membrane tank to the sludge tank at regular intervals.
4. The integrated domestic sewage treatment apparatus according to claim 2,
still placed the MBR membrane module in the membrane tank, the MBR membrane module utilizes the membrane to filter the mud-containing sewage in the biochemical reaction tank, realizes mud-water separation, and the play water end of MBR membrane module is through pipeline and self priming pump UNICOM injection contact disinfection pond, obtains high-quality product water.
5. The integrated domestic sewage treatment apparatus of claim 4 wherein said self-priming pump is disposed within the equipment tank.
6. The integrated domestic sewage treatment device according to claim 1, wherein an air pump set is placed in the equipment area;
the air pump set supplies air to the pre-anoxic tank, the anaerobic tank, the anoxic tank, the aerobic tank, the post-anoxic tank, the post-aerobic tank and the membrane tank through the aeration pipelines respectively, a main passage of the aeration pipeline is fixed on the upper part of the device through a support, and each aeration branch enters the lower part of each tank body.
7. The integrated domestic sewage treatment device according to claim 6, wherein the aeration branch in the aerobic tank is a microporous aeration pipe; the aeration branch positioned in the membrane tank can sweep suspended matters intercepted by an MBR membrane component arranged in the tank.
8. The integrated domestic sewage treatment device according to claim 1, wherein a first reflux pump is disposed in the aerobic tank, the first reflux pump is communicated with the anoxic tank through a mixed liquor reflux pipe, and the first reflux pump is used for refluxing the nitrified liquor in the aerobic tank to the anoxic tank.
9. The integrated domestic sewage treatment device of claim 1, wherein the outlet end of the inlet pipe is communicated with the upper part of the anaerobic tank, and the inlet end of the inlet pipe is communicated with the regulating tank, so that water is introduced into the anaerobic tank from the regulating tank.
10. The integrated domestic sewage treatment device according to claim 1, wherein a backwash pump and an ultraviolet disinfection module are installed in the contact disinfection tank;
the backwashing pump is connected with an MBR membrane component arranged in the membrane pool through a pipeline, and the backwashing pump realizes the periodic removal of pollutants of the MBR membrane component by using clean water in the contact disinfection pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020890090.7U CN212387932U (en) | 2020-05-25 | 2020-05-25 | Domestic sewage treatment integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020890090.7U CN212387932U (en) | 2020-05-25 | 2020-05-25 | Domestic sewage treatment integrated device |
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| Publication Number | Publication Date |
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| CN212387932U true CN212387932U (en) | 2021-01-22 |
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| CN202020890090.7U Active CN212387932U (en) | 2020-05-25 | 2020-05-25 | Domestic sewage treatment integrated device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547955A (en) * | 2020-05-25 | 2020-08-18 | 天津市联合环保工程设计有限公司 | Domestic sewage treatment integrated device |
| CN113044984A (en) * | 2021-03-26 | 2021-06-29 | 北京城市排水集团有限责任公司 | Continuous flow subsection water inlet short-cut denitrification-anaerobic ammonia oxidation coupling denitrification sewage treatment system and method |
-
2020
- 2020-05-25 CN CN202020890090.7U patent/CN212387932U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547955A (en) * | 2020-05-25 | 2020-08-18 | 天津市联合环保工程设计有限公司 | Domestic sewage treatment integrated device |
| CN113044984A (en) * | 2021-03-26 | 2021-06-29 | 北京城市排水集团有限责任公司 | Continuous flow subsection water inlet short-cut denitrification-anaerobic ammonia oxidation coupling denitrification sewage treatment system and method |
| WO2022199097A1 (en) * | 2021-03-26 | 2022-09-29 | 北京城市排水集团有限责任公司 | Continuous flow step-feed short-cut denitrification - anaerobic ammonium oxidation coupled denitrification sewage treatment system and method |
| CN113044984B (en) * | 2021-03-26 | 2023-11-07 | 北京城市排水集团有限责任公司 | Continuous flow sectional water inlet short-cut denitrification-anaerobic ammonia oxidation coupling denitrification sewage treatment system and method |
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