CN114751598A - Integrated sewage treatment equipment - Google Patents
Integrated sewage treatment equipment Download PDFInfo
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- CN114751598A CN114751598A CN202210474179.9A CN202210474179A CN114751598A CN 114751598 A CN114751598 A CN 114751598A CN 202210474179 A CN202210474179 A CN 202210474179A CN 114751598 A CN114751598 A CN 114751598A
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- tank
- sewage treatment
- ecological wetland
- sewage
- integrated sewage
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- 239000010865 sewage Substances 0.000 title claims abstract description 79
- 230000003647 oxidation Effects 0.000 claims abstract description 36
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 36
- 238000004062 sedimentation Methods 0.000 claims abstract description 25
- 238000011010 flushing procedure Methods 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 230000008719 thickening Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 14
- 244000005700 microbiome Species 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 239000012535 impurity Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 238000011001 backwashing Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 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 4
- 230000009471 action Effects 0.000 description 4
- 230000004060 metabolic process Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses an integrated sewage treatment device, which belongs to the technical field of sewage treatment and has the technical scheme that the integrated sewage treatment device comprises a grating tank, an adjusting tank, an anaerobic tank, an anoxic tank, an aerobic treatment unit and a sedimentation tank which are sequentially arranged along the sewage treatment direction; the aerobic treatment unit comprises an oxidation pond, a lifting well and an ecological wetland module which are sequentially arranged along the sewage treatment direction, and the ecological wetland module comprises an ecological wetland bed and wetland plants planted on the ecological wetland bed. The integrated sewage treatment equipment can perform sufficient and effective back flushing on the aerobic tank, so that the falling of an old biological film on a filler of the aerobic tank is accelerated, the blockage is avoided, and the efficient running of sewage treatment can be ensured.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to integrated sewage treatment equipment.
Background
Sewage treatment refers to a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as building, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. The aerobic treatment is an important part of the sewage treatment process, and the aerobic tank is a treatment device which utilizes aerobic microorganisms in the sewage to digest and degrade organic matters in the sewage in the presence of free oxygen so as to stabilize and make the organic matters harmless. The aerobic tank is generally in the form of a contact oxidation tank, the filler is arranged in the aerobic tank, and the oxygenated sewage submerges all the filler and flows through the filler at a certain flow rate. The microorganism is partly fixed on the surface of the filler in the form of a biological film, and partly suspended in water in the form of flocculent, so that the method has the characteristics of a biological filter and an activated sludge method. The oxygen required by the microorganisms in the contact oxidation pond is usually supplied by artificial aeration. After the biological film grows to a certain thickness, microorganisms near the filler wall carry out anaerobic metabolism due to oxygen deficiency, and the generated gas and the scouring action formed by aeration cause part of the biological film to fall off, so that the growth of a new biological film is promoted, and the biological metabolism is formed. The old biological film on the traditional aerobic tank filler falls off slowly and even easily causes blockage, thereby influencing the sewage treatment efficiency.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an integrated sewage treatment device which can perform full and effective back washing on an aerobic tank, so that the falling of an old biological membrane on a filler of the aerobic tank is accelerated, the blockage is avoided, and the efficient operation of sewage treatment can be ensured.
The technical purpose of the invention is realized by the following technical scheme: an integrated sewage treatment device comprises a grating tank, a regulating tank, an anaerobic tank, an anoxic tank, an aerobic treatment unit and a sedimentation tank which are arranged along the sewage treatment direction in sequence; the aerobic treatment unit comprises an oxidation pond, a lifting well and an ecological wetland module which are sequentially arranged along the sewage treatment direction, the ecological wetland module comprises an ecological wetland bed and wetland plants planted on the ecological wetland bed, the oxidation pond is connected with the anoxic pond, the lifting well is connected with the ecological wetland bed, and the ecological wetland bed is connected with the sedimentation tank; a back-flushing pipeline is connected between the ecological wetland bed and the oxidation pond.
In some embodiments, the sedimentation tank further comprises a filter mechanism, wherein the filter mechanism is connected with the sedimentation tank.
In some embodiments, a disinfection tank is further included, the disinfection tank being connected to the filter mechanism.
In some embodiments, the oxidation pond further comprises a fan for aerating the oxidation pond.
In some embodiments, the air outlet pipeline of the fan firstly leads to the wetland plants and then leads from the wetland plants to the oxidation pond.
In some embodiments, the sewage treatment system further comprises a sludge thickener, which comprises an inlet and two outlets, wherein the inlet is connected with the sedimentation tank, one outlet is connected with the anaerobic tank, and the other outlet is open to the outside.
In conclusion, the invention has the following beneficial effects:
the integrated sewage treatment equipment has the advantages that the sewage treated in the oxidation tank can seep through the ecological wetland bed through the lifting well and then flows into the sedimentation tank for sedimentation treatment, the ecological wetland bed is arranged in front of the sedimentation tank and can filter a large amount of precipitated impurities and microorganisms in advance, the whole process is green and effective, the burden of the sedimentation tank can be effectively lightened, a backwashing pipeline is connected between the ecological wetland bed and the oxidation tank, the oxidation tank can be backwashed by virtue of the sewage filtered by the ecological wetland bed, the ecological wetland bed effectively adsorbs and filters the sewage output from the oxidation tank, the impurity content in the adsorbed and filtered sewage is greatly reduced, the backwashing effect is good, secondary pollution to the filler in the oxidation tank can not be caused in the backwashing process, and therefore, the integrated sewage treatment equipment can carry out full and effective backwashing on the aerobic tank, thereby accelerating the falling of the old biological film on the filler of the aerobic tank, avoiding the blockage and ensuring the high-efficiency sewage treatment.
Drawings
FIG. 1 is a schematic diagram of the overall structure and operation of the present invention;
FIG. 2 is a schematic diagram of the structure and working flow of the aerobic treatment unit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 and 2, an integrated sewage treatment apparatus includes a grating tank, a regulating tank, an anaerobic tank, an anoxic tank, an aerobic treatment unit, and a sedimentation tank, which are sequentially arranged along a sewage treatment direction; the aerobic treatment unit comprises an oxidation pond, a lifting well and an ecological wetland module which are sequentially arranged along the sewage treatment direction, the ecological wetland module comprises an ecological wetland bed and wetland plants planted on the ecological wetland bed, the oxidation pond is connected with the anoxic pond, the lifting well is connected with the ecological wetland bed, and the ecological wetland bed is connected with the sedimentation tank; a back-flushing pipeline is connected between the ecological wetland bed and the oxidation pond.
Through the technical scheme, when sewage is treated, sewage firstly enters the grid tank for pretreatment so as to screen off some large-particle impurities in the sewage, then is cached in the regulating tank, the flow speed and the flow direction of the sewage are distributed and regulated by the regulating tank according to actual requirements, then the sewage is input into the anaerobic tank, the organic matters in the sewage are hydrolyzed, acidified and methanated by utilizing the action of anaerobic bacteria in the anaerobic tank, the organic matters in the sewage are removed, the biodegradability of the sewage is improved, the subsequent aerobic treatment is facilitated, then the sewage is input into the anoxic tank, the anoxic tank mainly plays a role in denitrifying the sewage to remove nitrate nitrogen and simultaneously removes partial BOD, then the sewage is input into the aerobic tank, the aerobic tank utilizes aerobic microorganisms in the sewage to digest and degrade the organic matters in the sewage under the condition that free oxygen exists, the embodiment of the treatment device adopts a contact oxidation tank, filler is arranged in the tank, and oxygenated sewage immerses all the filler and flows through the filler at a certain flow rate. The method is characterized in that part of the microorganisms are fixed on the surface of the filler in a form of a biological film, and the other part of the microorganisms are suspended in water in a flocculent manner, so that the method has the characteristics of a biological filter tank and an activated sludge method, oxygen required by the microorganisms in a contact oxidation tank is usually supplied by artificial aeration, after the biological film grows to a certain thickness, the microorganisms near the wall of the filler carry out anaerobic metabolism due to oxygen deficiency, the generated gas and the scouring action formed by aeration cause part of the biological film to fall off, the growth of a new biological film is promoted, the metabolism of organisms is formed, the sewage treated by the oxidation tank permeates through an ecological wetland bed under the transmission action of a lifting well so as to realize the adsorption and filtration of impurities and part of the microorganisms in the sewage, finally, the sewage after filtration and adsorption is gathered in a sedimentation tank, water and impurities are layered, and in the process, the nitrification liquid in an aerobic tank flows back to the anaerobic tank in the front section of the process, nitrate nitrogen generated by ammonia nitrogen oxidation by nitrifying bacteria is contained in the nitrifying liquid, and can be mixed with organic matters in inlet water in the anaerobic tank after the nitrate nitrogen flows back to the front end, and denitrification of the nitrate nitrogen is performed by denitrifying bacteria, so that total nitrogen removal is realized.
According to the integrated sewage treatment equipment, the treated sewage in the oxidation tank can seep through the ecological wetland bed through the lifting well and then flows into the sedimentation tank for sedimentation treatment, the ecological wetland bed is arranged in front of the sedimentation tank and can filter a large amount of sediment impurities and microorganisms in advance, the whole process is green and effective, and the burden of the sedimentation tank can be effectively reduced;
in addition, a back-flushing pipeline is connected between the ecological wetland bed and the oxidation tank, the oxidation tank can be back-flushed by virtue of sewage filtered by the ecological wetland bed, the ecological wetland bed effectively adsorbs and filters the sewage output from the oxidation tank, the impurity content in the adsorbed and filtered sewage is greatly reduced, the back-flushing effect is good, and secondary pollution to the filler in the oxidation tank can not be caused in the back-flushing process, so that the integrated sewage treatment equipment can fully and effectively back-flush the aerobic tank, the falling of an old biomembrane on the filler of the aerobic tank is accelerated, the blockage is avoided, and the efficient implementation of sewage treatment can be ensured.
In some embodiments, as shown in fig. 1, the sewage treatment device further includes a filtering mechanism, the filtering mechanism is connected to the sedimentation tank, the sewage output from the sedimentation tank can be introduced into the filtering mechanism for treatment, the filtering mechanism realizes secondary filtration of the sewage, and further filters impurities and part of microorganisms in the sewage.
In some embodiments, as shown in fig. 1, the sewage treatment device further comprises a disinfection tank connected to the filtering mechanism, wherein the sewage output from the filtering mechanism can be introduced into the disinfection tank to sterilize and disinfect the sewage, so that the sewage reaches the discharge standard, and the sewage reaching the discharge standard can be directly discharged from the disinfection tank to the outside
In some embodiments, as shown in fig. 1 and fig. 2, the oxidation pond further comprises a fan, the fan is used for aerating the oxidation pond, preferably, an air outlet pipeline of the fan firstly leads to the wetland plants and then leads to the oxidation pond from the wetland plants, the oxygen content of the area where the wetland plants are located is high, and the arrangement of the air outlet pipeline can improve the oxygen supply rate to the oxidation pond, so that the aeration efficiency to the oxidation pond is improved.
In some embodiments, as shown in fig. 1, the system further comprises a sludge concentration tank, the sludge concentration tank comprises an inlet and two outlets, the inlet is connected with the sedimentation tank, one outlet is connected with the anaerobic tank, the other outlet is open to the outside, sludge precipitated from sewage in the sedimentation tank enters the sludge concentration tank, the water content of sludge generated in the wastewater treatment process is high, so that the volume of the sludge is large, and the treatment, utilization and transportation of the sludge are difficult. The sludge concentration is to reduce the water content of the sludge and the volume of the sludge through sludge thickening, so that the subsequent treatment cost is reduced, the sludge which just enters the sludge concentration tank is transmitted to the anaerobic tank to be subjected to total nitrogen removal, and the sludge is discharged to the outside through the sludge concentration tank after being recycled.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the present invention.
Claims (6)
1. An integrated sewage treatment device, which is characterized in that:
comprises a grating tank, an adjusting tank, an anaerobic tank, an anoxic tank, an aerobic treatment unit and a sedimentation tank which are arranged along the sewage treatment direction in sequence;
the aerobic treatment unit comprises an oxidation pond, a lifting well and an ecological wetland module which are sequentially arranged along the sewage treatment direction, the ecological wetland module comprises an ecological wetland bed and wetland plants planted on the ecological wetland bed, the oxidation pond is connected with the anoxic pond, the lifting well is connected with the ecological wetland bed, and the ecological wetland bed is connected with the sedimentation tank;
a back-flushing pipeline is connected between the ecological wetland bed and the oxidation pond.
2. The integrated sewage treatment apparatus of claim 1, wherein: the device also comprises a filtering mechanism, and the filtering mechanism is connected with the sedimentation tank.
3. The integrated sewage treatment apparatus of claim 2, wherein: still include the disinfection pond, the disinfection pond with filtering mechanism links to each other.
4. The integrated sewage treatment apparatus according to claim 1, wherein: the device also comprises a fan, and the fan is used for aerating the oxidation pond.
5. The integrated sewage treatment apparatus of claim 4, wherein: and an air outlet pipeline of the fan firstly leads to the wetland plants and then leads to the oxidation pond from the wetland plants.
6. The integrated sewage treatment apparatus according to claim 1, wherein: still include the sludge thickening tank, the sludge thickening tank includes an entry and two exports, the entry with the sedimentation tank links to each other, one the export with the anaerobism pond links to each other, another the export leads to the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210474179.9A CN114751598A (en) | 2022-04-29 | 2022-04-29 | Integrated sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210474179.9A CN114751598A (en) | 2022-04-29 | 2022-04-29 | Integrated sewage treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114751598A true CN114751598A (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210474179.9A Pending CN114751598A (en) | 2022-04-29 | 2022-04-29 | Integrated sewage treatment equipment |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202988927U (en) * | 2012-12-27 | 2013-06-12 | 成都源创环保工程有限公司 | Biological wetland treatment device for domestic sewage |
| CN106746163A (en) * | 2015-11-22 | 2017-05-31 | 黑龙江邦百讯科技开发有限公司 | Rural sewage treatment environmental protection equipment |
| CN207276425U (en) * | 2017-09-18 | 2018-04-27 | 上海汉盛环保科技有限公司 | Sewage-treatment plant with biofilter and artificial wet land system |
| CN109179910A (en) * | 2018-10-19 | 2019-01-11 | 江苏必格建设有限公司 | A kind of domestic sewage treatment process |
-
2022
- 2022-04-29 CN CN202210474179.9A patent/CN114751598A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202988927U (en) * | 2012-12-27 | 2013-06-12 | 成都源创环保工程有限公司 | Biological wetland treatment device for domestic sewage |
| CN106746163A (en) * | 2015-11-22 | 2017-05-31 | 黑龙江邦百讯科技开发有限公司 | Rural sewage treatment environmental protection equipment |
| CN207276425U (en) * | 2017-09-18 | 2018-04-27 | 上海汉盛环保科技有限公司 | Sewage-treatment plant with biofilter and artificial wet land system |
| CN109179910A (en) * | 2018-10-19 | 2019-01-11 | 江苏必格建设有限公司 | A kind of domestic sewage treatment process |
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